v1.0.0

• 1.0.0 introduces breaking changes, including removing support for symbols and
  implementing associations as instance methods. To upgrade:
  1. Change snake-case symbols to their correct column names:
     record["First Name"] instead of record[:first_name])
  2. Change your association calls to use instance methods instead of []:

     class Tea < Airrecord::Table
       has_many :brews, class: "Brew", column: "Brews"
     end
     tea[:brews] #=> Error, no longer supported
     tea.brews #=> [<Brew>, <Brew>] returns associated Brew instances
     tea["Brews"] #=> ["rec456", "rec789"] returns a raw Airtable field

  3. Dates that are formed \d{4}-\d{2}-\d{2} are no longer auto-parsed. Define a helper instead.
• Automatically throttle client calls to Airtable's API limit of 5 requests per second.
• Fix sorting by multiple fields
• Report User-Agent as Airrecord.